"WANTED, by Retired Clergyman, Secretarial Assistant with courage and imagination. Tenor voice and some knowledge of Hebrew essential; single; unworldly. Apply Philip Skale."

Robert Spinrobin needed the work, and he took the bait. He possessed the necessary qualifications: a thin tenor voice, not unmusical; a smattering of Hebrew which he had picked up at Cambridge because he liked the fine, high-sounding names of deities and angels; and courage and imagination.It was a job he lived to regret. For he was meant to be the final note in a "human chord" designed to call out the true name of God . . . which could prove the greatest blessing or the worst curse in all of creation!